What Is Flat Copper Wire?
Definition and Basic Characteristics
Flat copper wire is a copper conductor manufactured with a rectangular or square cross-section rather than a round profile. It provides a consistent surface area and can be produced to custom width, thickness, hardness, and finish requirements.
Fullgreat Metal Limited supplies flat copper wire in C11000/T2 pure copper, a high-conductivity material suitable for electrical and precision manufacturing applications. Cross-section tolerances can be controlled to ±0.01 mm, depending on the specification. For more information on custom profiles, see our guide to custom flat-shaped wire profiles and precision control.
Manufacturing Process: Precision Rolling and Drawing
Flat copper wire is formed through controlled metal-processing operations that establish its required profile and dimensions. For custom orders, the production route is selected according to the required width, thickness, temper, surface finish, and packaging format.
Fullgreat supports blueprint-based manufacturing, pre-production samples, material testing, and Mill Test Certificates to help verify product requirements before bulk delivery.
Key Properties of Flat Copper Wire
Electrical Conductivity: The Core Advantage
Our flat copper wire is available in C11000 / T2 pure copper, offering 99.9% high electrical conductivity. This makes it suitable for electrical applications, transformer windings, stamping parts, and other components where efficient current transfer is important.
Thermal Conductivity and Heat Dissipation
Copper also transfers heat effectively, supporting heat dissipation in electrical and electronic assemblies. The flat profile provides a broad contact surface for designs that require compact copper conductors and efficient thermal transfer.
Dimensional Accuracy and Surface Quality
We produce custom rectangular and square profiles with cross-section tolerances controlled to ±0.01 mm. Customers can specify the required width, thickness, surface finish, and film coating, with material quality supported by ISO 9001 and ISO:TS16949 systems.
Formability and Ductility
Flat copper wire can be supplied with different hardness or temper requirements to match the customer’s processing needs. This supports applications involving winding, stamping, and formed electrical components while allowing the profile and finish to be tailored to the production process.
Types and Tempers of Flat Copper Wire
We supply flat copper wire in material and temper options selected around conductivity, forming needs, surface requirements, and the intended production process. C11000/T2 pure copper provides 99.9% high conductivity and can be manufactured in custom rectangular or square profiles.
Bare Flat Copper Wire
Bare flat copper wire is supplied with its natural copper surface. It is a practical choice for electrical applications, precision stamping, connectors, and transformer winding where high-conductivity copper and direct material contact are required. We control width, thickness, temper, and surface finish to match the drawing or production requirement.
For related profile options, view our custom flat wire products.
Tinned Flat Copper Wire
Tinned flat copper wire has a tin-coated surface for applications that require a specified surface treatment. Coating requirements can be customized alongside the wire’s dimensions, hardness, and packaging format. This makes tinned material suitable for buyers who need a flat copper wire specification aligned with their electrical component or assembly process.
Hard, Half-Hard, and Soft Tempers
Temper determines how the precision flat copper wire performs during bending, shaping, stamping, and winding. We can tailor hardness to support the required balance between strength and formability.
- Hard temper: Used where greater rigidity and shape retention are needed.
- Half-hard temper: Provides a balanced option for forming and strength requirements.
- Soft temper: Better suited to applications requiring easier bending, shaping, or winding.
Our flat copper wire can be produced with custom thickness, width, temper, surface finish, film coating, and spooling to meet defined production requirements.
Applications of Flat Copper Wire
Transformer and Inductor Windings
We supply high-conductivity C11000/T2 pure copper flat wire for transformer winding and related electrical applications. Custom rectangular profiles, controlled thickness, width, temper, and surface finish help match winding and assembly requirements.
Electrical Connectors and Busbars
Flat copper wire can be specified for electrical connectors, copper strips, and other conductive components that require reliable electrical performance. We support custom dimensions and finishes based on the drawing or technical specification.
Electronic Components and Shielding
For electronics and precision hardware, we provide custom flat copper wire with controlled cross-sections and surface quality. Material options, protective film requirements, and packaging can be adjusted for the intended component or production process.
Telecommunications and Data Transmission
Projects involving telecommunications or data-related hardware can be developed around the required copper grade, dimensions, temper, and finish. Our engineering team works from customer drawings to prepare samples and support suitable flat copper wire specifications for evaluation. For a comprehensive overview of metal wire options across different materials, our precision flat metal wire guide covers custom sizes and material selection across multiple alloys.
Why Choose Fullgreat Metal Limited for Flat Copper Wire?
Unlike stainless steel or aluminum alternatives, our flat copper wire delivers 99.9% high electrical conductivity, making it the preferred choice for transformer windings, connectors, and high-current electrical applications.
ISO 9001 Certified Quality Assurance
We manufacture flat copper wire under ISO 9001 and ISO/TS16949 quality systems. Our production and testing equipment supports close dimensional control, with cross-section tolerances controlled to ±0.01 mm for suitable custom specifications. Mill Test Certificates (MTCs) provide material traceability with each shipment.
Customizable Specifications: Width, Thickness, and Finish
We produce C11000 / T2 pure copper flat wire with 99.9% high electrical conductivity. Based on your drawings or specifications, we can adjust:
| Custom option | Available requirements |
|---|---|
| Profile | Rectangular or square |
| Dimensions | Width and thickness |
| Temper | Hardness and temper level |
| Surface | Finish and protective film coating |
| Delivery format | Custom spooling and packaging |
Pre-production samples can support dimensional, hardness, and surface verification before bulk production.
Factory-Direct Pricing and Global Export
As a primary China-based manufacturer, we provide factory-direct wholesale pricing without unnecessary intermediary costs. Our monthly production capacity reaches 50,000 tons, supported by nearly 10,000 tons of standard inventory. We also provide direct export delivery, custom packaging, and documentation for customers in global electrical, electronics, automotive, and precision manufacturing markets.
For detailed specifications, customization options, and pricing, please visit our flat copper wire product page.
Technical Specifications and Customization Options
Width, Thickness, and Tolerance Control
We manufacture custom flat copper wire in rectangular and square profiles based on customer drawings or technical requirements. Width, thickness, hardness, and cross-section dimensions can be tailored for electrical, winding, stamping, and precision equipment applications.
| Specification | Available options |
|---|---|
| Material | C11000 / T2 pure copper |
| Conductivity | 99.9% high electrical conductivity |
| Profile | Rectangular, square, and precision flat wire |
| Width and thickness | Customised to drawing or specification |
| Cross-section tolerance | Controlled within ±0.01 mm where applicable |
| Hardness | Soft, half-hard, or hard temper by requirement |
| Standards | ASTM B152 and JIS H3100 |
Surface Finish Options: Bare, Tinned, or Coated
Our flat copper wire can be supplied with the required surface finish, including bare copper or specified protective film coating requirements. Finish details are reviewed against the application, drawing, and quality expectations before production. Material traceability is supported through Mill Test Certificates.
Packaging and Spooling
We provide custom packaging and spooling for different production, transport, and handling requirements. Packaging details can be aligned with the wire profile, order quantity, and customer process. Standard materials may also support small trial orders for testing and qualification.
For detailed specifications and pricing, please visit our flat copper wire product page.
Frequently Asked Questions
What is the MOQ for flat copper wire?
For custom flat copper wire, our minimum order quantity is 1 ton. We also support small trial orders for standard materials and quality testing, subject to specification and availability.
What is the difference between flat copper wire and copper strip?
Both products use flat copper profiles, but their use and supply format may differ. Flat copper wire is commonly produced for defined wire dimensions and applications such as winding or electrical components. Copper strip is generally supplied as a wider strip or coil for electrical applications, stamping, and transformer windings. We can recommend the suitable format based on the required dimensions and application.
Can you provide samples for testing?
Yes. We provide pre-production samples so customers can verify key requirements such as dimensions, hardness, and surface finish before bulk production. Sample arrangements depend on the requested material and custom specifications.
What is the typical delivery time?
Delivery time depends on the material grade, dimensions, temper, surface finish, quantity, and packaging requirements. Standard materials may support faster order processing, while custom flat copper wire requires production scheduling. We confirm the delivery schedule when reviewing the inquiry and specifications.
